Well, this is an interesting topic. One that's been discussed, I believe, multiple times. My insight would be this: Typically people more dedicated to role playing rather than grinding do not care if you role play a character, especially a
villain, with more stats than they truly have. Why? Because as a villain, that character is understood to be considerably more at risk of being mobbed to death. Why spend countless hours of grinding (in my case and as I can see, in yours) pointlessly when you can simply indicate, say, in the out of character tab, how powerful your villainous persona actually is? I have yet to have a complaint on doing this with any of my characters, though some have asked for clarification. So long as you are realistic about it and not attempting to role play some sort of mythological adonis who is invulnerable to spell and blade alike, you'd be surprised that the majority of folks truly do not mind, in exchange for a good and entertaining role play. I know that I have participated in battles with many many villains who had not so much as touched a training NPC since their creation, but because of the enjoyment I got from the role play, I was perfectly happy cooperating with however powerful they had implied their character actually was. Alternatively, on the only character of mine that actually has stats, I tend to tone them down considerably as most of the people I participate in role plays with are not quite as powerful, mechanically speaking, and it's really quite boring to depict an invincible character.
Besides, battle scars are in, right?

Also, at the risk of sounding exclusive, if an individual for some reason does end up having issue with it, there is a simple solution: They are not forced to participate in the role play that you are endeavoring to begin. Since this would be the player's decision, and not an outright attempt to keep them from active participation, I see no problem with it, and it is an easy way to come to an agreement.
Again, I've not run into this problem yet, which attests to the relative level of cooperativeness most people have demonstrated on the subject. In simple words, Jacula:
Just give it a try.
Now, to move on to other possibly obnoxious rambling, I'd also add that I see
absolutely no issue in having a character renamed after permanent death. People complain about the favoratism. I'd suggest simply having some cap number limit on the name changing, to put an end to that, which would be a simple solution. I see no reason why you can't simply take the minute or two (I know it only takes this length of time because I know of many people who've had their name switched for their out of character natures) to change the name, and then allow the person to begin to role play again, if they're so bent upon keeping the stats. It's a simple solution for a greater role playing goal achieved, and Jacula is hardly the first person to request such a change. Not that my opinion really matters in the long run, but personally, if they are as good at general inclusiveness as it has been indicated, I'd love to see them back in game and starting new, interesting threads of role play. It is my understanding that role play is what this game is centered around, no?
So why not do whatever you can to initiate it?